Sending data to a PS/2 port

I was wondering if there is any way to send data to the mouse PS/2 port? I would like to be able to turn on/off two different relays by sending data directly from the PS/2 port (ie: directly using a couple wires straight from one of the PS/2 pins to a breadboard). Preferrably I would like to use MatLab to do this but C also works. I also don't know how to open this port that is not connected to any hardware.